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Gray/Portland, ME Local Forecast Office

14NM NE Portsmouth NH

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:Variable winds 5 kt or less. A chance of showers and thunderstorms.  Patchy fog.  Seas 1 ft or less.

      Low: 45 °F

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds 5 kt or less. A chance of showers, mainly between 11am and 2pm.  Patchy fog before 1pm.  Seas 1 ft or less.

      High: 59 °F

      Light Wind
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Low: 45 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

      High: 49 °F

      Light Wind
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. A chance of showers after 3am.   Seas 1 ft or less.

      Low: 43 °F

      Light Wind
      < 1ft

    • Sunday

      Sunday:S wind 5 to 10 kt becoming SW in the afternoon. Rain, mainly after 8am.   Seas 1 ft or less.

      High: 50 °F

      SSW 10kt
      < 1ft

    • Sunday Night

      Sunday Night:W wind around 10 kt. Rain, mainly before 11pm.   Seas 1 ft or less.

      Low: 36 °F

      W 10kt
      < 1ft

    • Monday

      Monday:WNW wind around 10 kt. Mostly sunny. Seas 1 ft or less.

      High: 43 °F

      WNW 10kt
      < 1ft

    • Monday Night

      Monday Night:NW wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

      Low: 31 °F

      NW 10kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:33 pm EDT Apr 16, 2026
Forecast Valid: 12am EDT Apr 17, 2026-6pm EDT Apr 23, 2026

View Nearby Observations

Detailed Forecast


Overnight
Variable winds 5 kt or less. A chance of showers and thunderstorms. Patchy fog. Seas 1 ft or less.
Friday
Variable winds 5 kt or less. A chance of showers, mainly between 11am and 2pm. Patchy fog before 1pm. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Saturday
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. A chance of showers after 3am. Seas 1 ft or less.
Sunday
S wind 5 to 10 kt becoming SW in the afternoon. Rain, mainly after 8am. Seas 1 ft or less.
Sunday Night
W wind around 10 kt. Rain, mainly before 11pm. Seas 1 ft or less.
Monday
WNW wind around 10 kt. Mostly sunny. Seas 1 ft or less.
Monday Night
NW wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Winds and seas higher in and near tstms.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 43.25°N 70.58°W
Last Update: 6:33 pm EDT Apr 16, 2026
Forecast Valid: 12am EDT Apr 17, 2026-6pm EDT Apr 23, 2026
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